JPH0328743Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement of a threshing machine installed in a combine harvester or the like.

Conventional technology Conventionally, second grains consisting of unprocessed grains such as ear cut grains and grains with stalks attached (containing long straw, straw waste, etc.) are
A second material reducing device in which the material is returned to the oscillating sorting body of the sorting section or to a handling chamber or processing chamber for reprocessing using a material reducing cylinder is already known and has been put to practical use.

Further, there is also provided a device in which a second material reducing cylinder having a spiral body inside is used to reduce the second material onto the swinging sorting body.

Problems that the invention aims to solve However, the conventional secondary reduction cylinders with a spiral body inside are those in which the cylinder is installed almost vertically against the machine body, or in which the cylinder is installed in a swinging sorter. Most of them are long ones that simply extend toward the starting end, and in the former, due to the structure of the threshing machine, it is not possible to return the second material to the starting end of the oscillating sorter in the direction in which the material to be processed is transferred; ,
In the latter type, the longer the cylinder, the more grains (residual grains) remaining in the spiral cylinder and the more damaged the grains tend to be.

Means for Solving the Problems Therefore, the present invention provides a threshing machine configured to reduce second grains to a swing sorting body via a second grain reducing cylinder, and a second grain grain that has a spiral body rotatably installed inside it. A spiral cylinder for reduction is installed upright on the machine, and the transfer end side of the spiral cylinder is communicated from the side with the upper space of the swinging sorter, and a second material is placed at the transfer end side of the spiral cylinder. A jumping body is provided that jumps out in the width direction of the swinging sorting body, and above the swinging sorting body, the second object is tilted downward toward the start end of the swinging sorting body in the direction of transfer of the processed material. The above-mentioned problem is solved by providing a receiving plate that can be flown down and configuring the projector to throw the second object onto the receiving plate.

Function The second material, which has been lifted by the spiral cylinder, is thrown from one side in the sorting width direction toward the width direction of the oscillating sorting body by the jumping body at the tip of the cylinder, and is dispersed on the receiving plate. It is accepted. The second item received on the receiving plate flows down the receiving plate while being uniformly diffused, falls to the transfer start end side of the oscillating sorter, and then leaks from the receiving screen in the handling room. It is reprocessed while being oscillatedly transferred on the oscillating sorter together with the unloaded material.

Embodiment The drawing shows a bottom handling type threshing machine A mounted on a combine harvester. Reference numeral 1 denotes a handling room, and the handling room 1 is box-shaped with a front side plate 1a having a culm supply port 1'a, a rear side plate 1b having a culm discharge port 1'b, a threshing side plate 2', etc. It is provided within the formed frame 1'.

2 is a handling cylinder, 3 is a feed chain, and on the opposite side of the feed chain 3, as shown in Figs. The chamber 5 is disposed so as to penetrate through the rear side plate 1b of the handling chamber and extend its inner side into the sorting width. 5a is a processing chamber receiving screen, 5b is a processing barrel case, 6 is a dust exhaust port, 7 is a dust feed port, 8 is a straw removal chain, and 9 is a cutter. A non-porous corrugated transfer body 10a and a corrugated transfer body 1 are disposed below the receiving net 1c in the handling room 1.
Semen leakage body 10 integrally connected to the tip of 0a
A swinging sorting body 10 consisting of b is provided.
11 is the karin, 12 is the first spiral, 13 is the second spiral,
14 is a suction fan, 15 is a stroke rack, 16
is an auxiliary fan. Reference numeral 17 denotes a receiving plate located between the handling room receiving screen 1c and the oscillating sorting body 10 and tilted downward toward the start end of the oscillating sorting body 10 in the direction of transfer of the processed material, and the lower end of the inclination has a corrugated shape. On the transfer body 10a, the sloping upper end faces below the No. 4 funnel R formed between the rear side plate 1b of the handling chamber and the flow down plate Q. As shown in FIG. 4, the receiving plate 17 is integrally connected to the sorting wind direction plate road side plate 24, and is adapted to swing together with the swinging sorting body 10. 17a
is a partition plate erected on the swinging receiving plate 17, and the partition plate 17a prevents the No. 2 reduced product from being biased to one side, to the left or right, so that it can be distributed uniformly over the entire surface. . Reference numeral 18 denotes a grain lifting cylinder erected on the transfer end side of the first spiral 12, which is equipped with a spiral body 18a, and its upper end discharge port (not shown) faces into the grain tank. 19 is the second spiral 13
A spiral cylinder for reducing the second material is installed diagonally on the transfer terminal side (same side as the grain lifting cylinder 18), and the transfer terminal side of the spiral cylinder 19 is placed laterally in the upper space of the swing sorting body 10. I have been communicating with you from. And inside the spiral cylinder 19,
A spiral body 19a is installed at the end of the transfer, and a spiral body 19a has a fixed jump-out body 20 that pops out the second thing in the width direction of the oscillating sorting body 10. It is configured to be thrown onto the receiving plate 17. Further, the projecting body 20 has a diameter larger than that of the spiral body 19a, and has a structure in which its lower end is continuously inclined at approximately the same angle as the helical blade angle of the spiral body 19a, as shown in FIG. The second material transferred inside the spiral cylinder 19 (particularly long straw, waste, etc. mixed in the second material) may wrap around the upper end of the cylinder 19, or cause damage between the cylinder 19 and the spiral body 19a. 〓
It is designed to be reduced smoothly and reliably without getting stuck in between.

21 is a discharge case that covers the popping body 20;
The discharge case 2 is integrally connected to the cylinder body 19.
1 has a second material discharge passage 2 with a discharge port 22 facing one side above the receiving plate 17 (the side opposite to the feed chain 3).
3 is formed. The side plate 21a on the lower side in the rotational direction of the projecting body 20 in the discharge passage 23 is the second side plate 21a.
As shown in the figure, the starting end side is protruded inwardly into the discharge passage 23 along the rotation locus of the projecting body 20 in a biting manner. Further, the width of the discharge passage is widened toward the end from the starting end to the discharge port 22 at the terminal end, thereby further promoting the dispersion and throwing action of the second material.

As shown in Fig. 6, the discharge case 21, which is integrated with the spiral cylinder 19 for reducing the second material, is located near the attachment part of the rear side plate 1b of the threshing chamber to which the front and rear side plates 1a and 1b of the threshing chamber are fixed. are integrally connected and fixed to each other via a tightening device 25 such as a bolt, and this connection configuration greatly increases the rigidity of the threshing side plate 2' near the attachment part of the rear side plate 1b of the handling chamber. Even though the threshing side plate 2' is made up of the following, it can be prevented from being distorted or deformed together with the rear side plate 1b of the handling chamber. Further, the lower part of the spiral cylinder 19 is connected and fixed to the screening air passage side plate 24.

On the other hand, the upper part of the grain lifting cylinder 18 is also connected to the threshing side plate 2'.
The lower part is connected and fixed to the sorting airway side plate 24, respectively, and the grain lifting cylinder 18 and the spiral cylinder 19 for reducing the second grain are connected to each other.
As shown in FIG. 4, they are arranged parallel to the threshing side plate 2' in a front-rear overlapping state when viewed from the front. By integrally connecting the grain lifting cylinder 18 and the second reducing spiral cylinder 19, the reinforcing effect of the side plate is further enhanced.

Now, the same spiral cases 26, 26' and the same transmission cases 27, 27' are fixed to the lower portions of the spiral cylinder 19 and the grain lifting cylinder 18, respectively. Further, each transmission case 27, 27' is interlocked by a chain 28,
The driving force is introduced from a drive chain wheel 29 fixed to the shaft end of the second spiral 13. 30 is a chain cover.

In the above configuration, the threshed grains that have just leaked from the handling room receiving net 1c fall onto the oscillating sorting body 10 of the sorting section, and are dispersed on the oscillating sorting body 10, forming a layer and forming a layer. are sequentially sent forward. Then, the grains (fine grains) leak from the fine grain leaking body 10b and are transferred to one side of the machine body in the first spiral, and then stored in a grain tank (not shown) in the grain lifting cylinder 18. Further, long straw and the like are further carried by the forward straw rack 15 and discharged outside the machine.

On the other hand, the second grain such as ear cut grains (containing long straw, waste, etc.) falls from the tip of the fine grain leaking body 10b and is transferred to one side of the machine body by the second spiral 13 in the same manner as described above. It is lifted by a spiral body 19a for reducing the second material, and at the end of the transfer, it is thrown by a jumping body 20 in a dispersed manner toward the width direction of the oscillating sorting body 10 from a discharge port 22 provided at one end side in the sorting width direction. and is received on the swing receiving plate 17. Then, while being uniformly diffused in the left and right directions on the receiving plate 17, it flows down along the inclined surface thereof and is sequentially returned to the starting end side (oscillating starting end side) of the waveform transfer body 10a of the oscillating sorting body 10. Therefore, it is possible to maximize the oscillating sorting distance and provide a sufficient oscillating dispersion sorting effect to the reduced second material. Note that the second material joins with the leakage material from the receiving net 1c and is subjected to the sorting action, but the second material is returned to the swinging start end side and in a uniformly diffused state, so that the oscillating sorting body 10 Disturbing the original layered sorting action (specific gravity sorting and wind sorting) on the top is reliably prevented.

By the way, if the helical cylinder 19 is simply extended to the swing start end side in order to return the second object to the swing start end side, the length of the cylinder body becomes long, and this is combined with the fact that the spiral transfer method is adopted. Not only does the number of grains left inside the cylinder (residuals inside the machine) increase, but also the number of grains that are damaged increases, and wet materials may adhere to and remain in the cylinder, and the weight of the entire machine inevitably increases.
In the present invention, the second object can be returned to the swing start end side, but the spiral cylinder 19 can be set as short as possible, so there is no such inconvenience.

Incidentally, among the fourth items such as grains and small-mouthed grains that have leaked through the processing chamber receiving screen 5a, those that have fallen onto the receiving plate 17 are dispersed in the same manner as described above and transferred to the corrugated transfer body 10a.
is guided to the starting end side.

Now, if the second object discharge passage 23 of the discharge case 21 is configured to simply widen toward the end as shown in FIG. , in this embodiment, the discharge passage 2 at the starting end side of the discharge passage 23
Since the side plate 21a on the lower side in the rotational direction of the ejection body 20 protrudes inwardly into the discharge passage 23 along the rotation locus of the ejection body 20, the second object tends to accumulate at the starting end side of the discharge passage 23. This inconvenience is solved because the second object is rotated by the ejection body 20 and is completely discharged, and the second object becomes locked in the discharge case 21, and furthermore, due to this, the gap between the spiral body 19a and the cylinder body 19 is removed. The second thing gets stuck in the spiral body 1.
The rotation of 9a never stops, and the discharge and reduction action of the second material is always performed smoothly and reliably.

During the above-mentioned series of threshing operations, the rear side plate 1b of the handling room receives a large and continuous force due to the movement of the material to be processed in the handling room and a reaction force when the grain culm is conveyed by the feed chain. Since the threshing side plate to which the side plate is attached is composed of a relatively thin plate, the threshing side plate is easily distorted and deformed together with the handling chamber rear side plate, but the threshing chamber rear side plate 1b of the threshing side plate 2'
Since the vicinity of the attachment part is connected and fixed to the discharge case 21 which is integrated with the spiral cylinder 19 for reducing the second material, the rigidity of the vicinity of the attachment part of the rear side plate 1b of the threshing chamber 2' is greatly increased. The shortcomings will be resolved.
Further, the frame shake of the box-shaped frame 1' in which the handling chamber 1 is provided is also prevented. Especially the front side plate 1a and the rear side plate 1b of the handling room 1.
are grain culm supply ports 1'a for grain culms to enter and exit, respectively.
The culm opening 1'b is wide open, and the width of the plate on the tip side is narrow like a constriction, which inevitably leads to a weakening of the strength. The entire frame 1' is supported and reinforced by the sturdy spiral cylinder 19 with the spiral body 19a inside, resulting in an ideal support structure.

Effects of the Invention As described above, the present invention provides a threshing machine in which the second material is returned to the oscillating sorting body via the second material reducing cylinder, and the second material is rotatably installed in the threshing machine.
A spiral cylinder for product return is installed upright on the machine, and the transfer end side of the spiral cylinder is communicated from the side with the space above the swinging sorter, and a second spiral cylinder is connected to the transfer end side of the spiral cylinder. A jumping body is provided above the swinging sorting body for jumping out objects in the width direction of the swinging sorting body, and is tilted downward toward the starting end of the swinging sorting body in the direction of transfer of the processed material.
A receiving plate is provided on which the objects can flow down, and the projecting body
Since it was configured to throw the block onto the receiving plate, 2
The second articles are reliably lifted by the spiral conveyance so that the spiral cylinder is not clogged, and the second articles are dispersed and released from the transfer end of the spiral cylinder in the width direction of the oscillating sorting body by the ejecting body. Not only can the second material be scooped, but also the second material can be returned to the starting end side of the oscillating sorting body by a receiving plate, and a sufficient oscillating dispersion sorting action can be given to the second material without disturbing the layered sorting action inherent to the oscillating sorting body. Moreover, the length of the spiral cylinder can be set as short as possible while the second material is returned to the starting end side of the oscillating sorting body, reducing the occurrence of grain residue and grain damage inside the spiral cylinder. It also has the effect of reducing the weight of the aircraft.

[Brief explanation of the drawing]

Figure 1 is a side view of a threshing machine equipped with the present invention, Figure 2A is a cross-sectional plan view of the same as above, Figure 2B is a cross-sectional plan view showing a comparative example of a discharge case, and Figure 3 is a perspective view of the discharge case. Figure 4 is a rear view of the threshing machine equipped with the present invention, Figure 5 is a partially cutaway longitudinal side view showing the relationship between the grain lifting cylinder and the No. 2 reduction spiral cylinder, and Figure 6 is the rear view of the threshing machine equipped with the present invention. It is a back view which shows the connection structure of the reducing cylinder, the handling chamber rear side plate, and the threshing side plate. In the figure, 1 is a handling room, 2' is a threshing side plate, 10 is a swinging sorter, 10a is a corrugated transfer body, 17 is a receiving plate, 17
a is a partition plate, 19 is a spiral cylinder for reducing the second material, 1
9a is a spiral body, 20 is a jumping body, and 22 is a discharge port.

Claims (1)

[Scope of utility model registration request] In a threshing machine configured to return second grains onto a swing sorting body via a second grain reducing cylinder, a spiral cylinder for second grain reduction, which has a spiral body rotatably inside, is installed upright on the machine. , the transfer end side of the spiral cylinder is communicated from the side with the upper space of the oscillating sorting body, and the second object is jumped out from the transfer end side of the helical cylinder toward the width direction of the oscillating sorting body. A jumping body is provided, and a receiving plate is provided above the swinging sorting body, and a receiving plate is provided above the swinging sorting body, which is inclined downward toward the starting end side of the material transfer direction of the swinging sorting body, and from which a second object can flow down. A threshing machine characterized by being configured to throw a second object onto a receiving plate.